Temperature controlled photoacoustic device for thermal diffusivity measurements of liquids and nanofluids

F Agresti, A Ferrario, S Boldrini, A Miozzo… – Thermochimica …, 2015 – Elsevier
… Fig. 1 shows a schematic representation of our experimental setup. The instrument is equipped
with a COMPACT-200G laser diode provided by World Star Tech emitting radiation at 808 nm.
The laser diode is controlled by a TTL input to produce pulses in the range of a few Hz. …